Free Welding Calculators & Reference
Welding Calculators & Reference
Free welding calculators and reference tools for AWS D1.1:2025 and A2.4. 予熱, 入熱, fillet サイズ, 炭素当量 — plus symbol charts, 適合 guides, and Q&A for fabricators and inspectors.
Calculators
°F
Preheat Calculator
D1.1:2025 表 5.11 lookup. Select steel, process, and 板厚 — get 最小 preheat and パス間温度.
kJ
Heat Input Calculator
Calculate heat input in kJ/in and kJ/mm from 電圧, 電流, and 溶接速度.
△
Fillet 溶接 Size
D1.1 Table 7.7 minimum すみ肉溶接サイズ lookup by material thickness.
lb
Deposition Rate
Calculate 溶接金属 溶着速度 in lbs/hr and kg/hr from ワイヤ送給速度 and 電極径.
CE
Carbon Equivalent
Calculate CE(IIW) and Pcm from steel chemistry to assess 溶接性 and 焼入性.
D1.1 Reference
WS
WPS Guide
What goes into a WPS under D1.1. 事前認定 vs qualified, Table 5.5 essential variables, format 要求事項.
WP
How to Fill Out a WPS Form
Field-by-field walkthrough of the D1.1 Annex J form. Table 5.5 variables, tolerances, common mistakes.
PW
Prequalified WPS
Clause 5 requirements for prequalification: approved processes, Table 5.6 steels, Figure 5.1 joints.
PQ
PQR — Procedure Qualification
When a PQR is required under D1.1. Table 6.6 essential variables and the prequalified exception.
D1
AWS D1.1:2025 Overview
What D1.1 covers, 11-条項 overview, prequalified vs qualified WPS paths.
CJ
CJP Weld Guide
Complete joint penetration welds: prequalified joints per Figure 5.1, バッキング requirements, CJP vs PJP.
MT
Mill Test Report (MTR)
How to read an MTR for D1.1 compliance: ASTM spec to Table 5.6 group to preheat lookup.
T°
Interpass Temperature
D1.1 minimum equals preheat, 最大 when CVN or material requirements apply.
HT
Post-Weld Heat Treatment
D1.1 Section 7.8 PWHT requirements: when it applies, 温度 ranges, and hold times.
80
Welding Standards Hub
All 80 welding codes covered by Flux: D1.x, ASME IX, API 1104, CSA W59, EN 1011-2, AS/NZS 1554.
Inspection
CW
Certified Welding Inspector
AWS B5.1 CWI requirements: education, experience, exam format, and renewal.
VT
Visual Weld Inspection
D1.1 Clause 8 VT 受入基準, 検査 sequence, and reject/accept decisions.
8.1
Weld Defects
Table 8.1 不連続 categories, the VT/RT/UT inspection sequence, and when 補修 is required.
ND
NDE Requirements
When RT, UT, MT, and PT are required under D1.1 Clause 8. Tables 8.1-8.3 decision ガイド.
UT
Ultrasonic Testing
D1.1 UT 合否基準 criteria, Class A through D indications, and scanning requirements.
UC
Weld Undercut
Table 8.1 アンダカット 限界値 for static and cyclic connections with 原因 and repair guidance.
PP
Weld Porosity
Table 8.1 気孔 acceptance criteria — when porosity passes and when it fails 外観検査.
Symbol Reference
◻
Weld Symbol Chart
Complete AWS A2.4 reference — every 溶接の種類, symbol anatomy, 矢の側/反対側, finishing codes.
◻
Fillet Weld Symbol
Leg size, throat, equal and unequal legs, intermittent fillet welds.
↓
Printable PDF Chart
Print-optimized 溶接記号 reference sheet. All 種類, anatomy, finishing codes on one page.
G
What Does G Mean?
Grinding and finishing symbols per AWS A2.4 — G, M, C, H, P, R, U designators 解説.
Preheat & Temperature
T°
Maximum Interpass Temperature
D1.1 has no general max. Only A514, HPS70W, HPS100W have 400–450°F limits.
❄
Cold Weather Welding
Below 32°F: preheat to 70°F. Below 0°F: welding prohibited. Wind shelter 5 mph.
5.11
Table 3.2/5.11 Explained
Table 3.2 is now Table 5.11. Seven preheat categories A through G by process and hydrogen level.
A+B
Dissimilar Metal Welding WPS
Use the highest preheat of either steel (§5.7.2). 溶加材 options and WPS writing guide.
Q&A
?
Q&A Hub
D1.1:2025 溶接Q&A with specific table and clause citations.
A36
A36 Preheat Temperature
Table 5.11 preheat requirements for A36 steel by process カテゴリー and thickness.
70
E7018 vs E6013
Electrode 比較 from a D1.1 compliance perspective — preheat, storage, qualification.
△
Minimum すみ肉溶接 Size
Table 7.7 explained — which thickness governs and how 電極 choice changes the answer.
CE
Carbon Equivalent Explained
D1.1 Annex B CE(IIW) formula with (Mn+Si)/6, Pcm, and what your 結果 means for preheat.